Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Liquid Liquid Equilibrium Data for the Separation of Acetone from n-Heptane Using Four Imidazolium-Based Ionic Liquids

Zhu, Zhaoyou, Bai, Wenting, Qi, Pengchao, Dai, Yao, Wang, Yinglong, Cui, Peizhe, Gao, Jun
J. Chem. Eng. Data 2019, 64, 3, 1202-1208
ABSTRACT
Ionic liquids (ILs) can serve as green alternative extractants to traditional solvents for the sustainable development of liquid-liquid extraction. Liquid-liquid equilibrium data for four systems of n-heptane + acetone + 1-butyl-3-methylimidazolium trifluoromethanesulfonate ([BMIM][OTF]), n-heptane + acetone + 1-hexyl-3-methylimidazolium trifluoromethanesulfonate ([HMIM][OTF]), n-heptane bis((trifluoromethyl)sulfonyl)imide acetone ([BMIM][NTf2]) and 1-butyl-3-methylimidazolium n-heptane acetone 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF6]) were tested at T = 298.15 K and P = 101.325 kPa in this work. By comparing the values of the distribution coefficients and separation factors, the experimental results showed that the order of extraction capacity of ILs as extraction solvent was [BMIM][OTF] greater than [BMIM][PF6] greater than [BMIM][NTf2] and [BMIM][OTF] greater than [HMIM][OTF]. Finally, the experimental data were regressed with the NRTL and UNIQUAC models, and the binary interaction parameters were obtained.
Compounds
# Formula Name
1 C3H6O acetone
2 C7H16 heptane
3 C9H15F3N2O3S 1-butyl-3-methylimidazolium trifluoromethanesulfonate
4 C11H19F3N2O3S 1-hexyl-3-methylimidazolium trifluoromethanesulfonate
5 C10H15F6N3O4S2 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide
6 C8H15F6N2P 1-butyl-3-methylimidazolium hexafluorophosphate
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 2
  • 1
  • 3
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • OTHER
  • OTHER
  • OTHER
  • 7
  • POMD
  • 2
  • 1
  • 4
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 1; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • OTHER
  • OTHER
  • OTHER
  • 7
  • POMD
  • 2
  • 1
  • 5
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 1; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • OTHER
  • OTHER
  • OTHER
  • 8
  • POMD
  • 2
  • 1
  • 6
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 1; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • OTHER
  • OTHER
  • OTHER
  • 8